Rotary motor means

ABSTRACT

A rotary motor means comprising a casing having a first portion providing a first cavity therein with a plurality of first indented regions and a second portion providing a cavity therein with a second plurality of indented regions, a first rotor unit supported for rotary movement within the first cavity of the casing proximate to the first indented regions for providing a respective plurality of compression chambers, a second rotor unit supported for rotary movement within the second cavity of said casing proximate to the second indented regions for providing a plurality of combustion chambers, a plurality of first blade elements movably supported by said first rotor unit, for being sequentially received into the compression chambers with the rotation of the first rotor unit, means for delivering to the compression chambers of said casing fluids for being compressed therein by the first blade elements, and means for delivering the compressed fluids from the compression chambers in predetermined timed sequence to respective combustion chambers for providing a combustible mixture in said combustion chambers for propelling the second blade elements during combustion and expansion of said mixture, and thereafter removing from said chambers the combustion products, the number of combustion chambers in the second portion of the casing exceeding the number of second blade elements while the number of compression chambers equal the number of combustion chambers and the number of first blade elements equal the number of second blade elements, and the angular disposition of the compression chambers with the combustion chambers, and the first blade elements with the second blade elements are respectively adjustably fixed.

United States Patent [191 'Knisclh [451 June 28, 1974 ROTARYMOTOR MEANS[75] Inventor: Boris Knisch, Estelle Manor, NJ.

[73] Assignee: Knisch Enterprises, Inc., Vineland,

[22 Filed: May22, 1972 21 Appl.No.: 255,555 I 52 U.S.Cl.- ..123/s.41,41s/230 511 men. F02b 53/00 58 Field of Search 123/841, 8.23,8.29, 8.19;

[56] References Cited UNITED STATES PATENTS 972,598 10/1910 Capwell418/231 1,238,806 9/1917 Painter 418/230 X 1,615,110 1/1927 Craig123/841 2,075,561 3/1937 Wellensiek.. 123/841 2,100,267 11/1937 Potthast418/230 X 2,158,532 5/1939 Bullen 123/823 2,879,753 3/1959 McKinley....123/25 C 3,213,838 10/1965 Douroux 123/841 Primary Examiner-William L.Freeh Assistant Examiner-Michael Koczo, Jr. Attorney, Agent, 'orFirmSeidel, Gonda & Goldhammer 57 ABSTRACT A rotary motor meanscomprising a casing having a first portion providing a first cavitytherein with a plurality of first indented regions and a second portionproviding a cavity therein with a second plurality of indented regions,a first rotor unit supported for rotary movement within the first cavityof the casing proximate to the first indented regions for providing arespective plurality of compression chambers, a second rotor unitsupported for rotary movement within the second cavity of said casingproximate to the second indented regions for providing a plurality ofcombustion chambers, a plurality of first blade elements movablysupported by said first rotor unit, for being sequentially received intothe compression chambers with the rotation of the first rotor unit,means for delivering to the compression chambers of said casing fluidsfor being compressed therein by the first blade elements, and means fordelivering the compressed fluids from the compression chambers inpredetermined timed sequence to respective combustion chambers forproviding a combustible mixture in said combustion chambers forpropelling the second blade elements during combustion and expansion ofsaid mixture, and thereafter removing from said chambers the combustionproducts, the number of combustion chambers in the second portion of thecasing exceeding the number of second blade elements while the number ofcompression chambers equal the number of combustion-chambers and thenumberof first blade elements equal the number of second blade elements,

- and the angular disposition of the compression chambers with thecombustion chambers, and the first blade elements with the second bladeelements are respectively adjustably fixed.

15 Claims, 12 Drawing Figures ROTARY MOTOR MEANS The present inventionrelates to a rotary motor means, and more particularly to a rotary motormeans providing a plurality of compression chambers for supplyingcompressed fluid in timed sequence to a plurality of combustionchambers, and first and second pluralities of blade elementsrespectfully received in said compression and combustion chambers.

Prior art rotary motors have been provided utilizing a plurality ofcombustion chambers and having a small number of combustion cycles foreach revolution of the rotor, or a large number of combustion chamberswith accompanying increase in size. Such motors have not combined a highdegree of compactness with a large and smooth power output. They alsoare not adaptable for allowing a variation in compression ratio byadjustment of the angular relationships between their components, nor dothey provide an assist to the power generated by utilzing waterinjection while providing a reduction of exhaust pollutants.

It is therefore a primary object of the invention to provide a newimproved rotary means having a large number of power cycles for eachrevolution of its rotor.

Another object of the invention is to provide a new and improved rotarymotor means utilizing a reduced number of blade elements and providinguniformly sequenced combustion cycles for producing a smooth powerdelivery to the rotor. Another object of the invention is to provide ane and improved rotary motor means in which the compression ratio iseasily adjusted by changing the angular disposition of its components.

Another object of the invention is to provide a new and improved rotarymotor means which may utilize a power assist by injecting water into thecombustion chambers during the combustion cycle.

Another object of the invention is to provide a new and improved rotarymotor means which may utilize either carburetor means or fuel injectionto provide a combustible fluid in the combustion chamber.

Another object of the invention is to provide. a new and improved rotarymotor means which minimizes the exhaustion of pollutants-and is compactin size and efficient in operation.

Another object of the invention is to provide a new and improved rotarymotor means which may effectively be lubricated and minimizes collectionof lubricants in the compression and combustion chambers.

The above objects as well as many other objects of the invention areachieved by providing a rotary motor means having a casingwith a firstportion providing a first cavity therein with a plurality of firstindented regions, and a second portion providing a second cavity thereinwith a second plurality of indented regions. A first rotor unit issupported for rotary movement within the first cavity of the casingproximate to the first indented regions for providing a respectiveplurality of compression chambers, while a second rotor unit issupported for rotary movement within the second cavity of the casingproximate to the second indented regions for providing a plurality ofcombustion chambers.

-A plurality of first blade elements are movably supported by the firstrotor unit for being sequentially received in the compression chamberswith the rotation of the first rotor unit, while a plurality of secondblade elements are movably supported by the second rotor unit for beingsequentially received in the combustion chambers with the rotation ofthe second rotor unit.

Means are provided for delivering to the compression chambers of thecasing a fluid for being compressed therein by the first blade elementsas well as means for delivering the compressed fluid from thecompression chambers in predetermined timed sequence to respectivecombustion chambers providing a combustible mixture in the combustionchambers for propelling the second blade elements during combustion andexpansion of the mixture, and thereafter removing from the combustionchambers the combustion products. Means are also provided forperiodically supplying to the combustion chambers of the casing in timedsequence after the firing of the combustible mixture and before theremoval of the combustion products from the chambers, a predeterminedvolume of water for vaporization to steam, the water vapor being removedfrom the combustion chambers with the removal of combustion productsafter combustion.

The number of combustion chambers in the second portion of the casingexceeds the number of second blade elements while the number ofcompression chambers equals the number of combustion chambers and thenumber of first blade elements equals the number of second bladeelements. A shaft means is rotatably and centrally mounted with thecasing and the first and second rotor units are secured with the shaftmeans for rotation therewith about a fixed axis. The first and secondrotor units are adjustably secured with the shaft means for providing apredetermined angular relationship between the first and second bladeelements, while the first and second portion of the casing are securedwith each other for angular adjustment about the shaft means forproviding a predetermined angular relationship between the compressionchambers and combustion chambers of the casing.

The first blade elements extend and reciprocate in the direction radialto the fixed axis, and the second blade elements extend and reciprocatein the direction parallel to the fixed axis, while cam means areprovided for movably engaging the blade elements and controlling theirrespective reciprocating motions with the movement of the rotor units.

The fixed axis extends in a vertical direction, and a fluid reservoir issecured with the bottom of the casing. Means for delivering lubricantreceived in the reservoir to the first and second cavities of the casingand retuming same to the reservoir includes a pumping means and passageway through the shaft means, the lubricant being returned bygravitational force to the reservoir.

FIG. 5 is a perspective view of a portion of the casing illustrating thecam surface for the blade elements received in the combustion chambers,

FIG. 6 is a sectional view taken on line 66 of FIG.

FIG. 7 is a fragmentary sectional view illustrating a blade elementreceived within a combustion chamber and positioned therein by the camsurface of the casing, and

FIGS. 8a through 8e are timing diagrams illustrating the compression andcombustion cycles for various angular relationships between thecompression and combustion chambers, and the blade elements.

Like reference numerals designate throughout the several views.

Refer to FIGS. 1 through 7 which disclose a rotary motor means 10embodying the invention. The motor means 10 comprises a casing 12 havinga top portion 14 and a bottom portion 16. The top portion 14 of thecasing 12 may be made of a conducting metallic material providing asubstantially vertical circularly extending side wall 18 and a top wall20 providing a cavity 22 therein. The bottom of the top section 14 issecured with a bottom plate 24 extending across the cavity 22 andproviding an intermediate wall for the casing 12.

The bottom portion 16 of the casing 12 may be composed of the samemetallic material as the top portion 14 and the plate 24 are made andhas a top section 26 and a bottom section 28. The top section 26 isprovided with a horizontal wall 30 at its top and a vertical arcularlyextending side wall 32. The bottom section 28 of the bottom portion 16of the casing 12 is also provided with a vertical arcularly extendingside wall 34 which engages the side wall 32, and a horizontal bottomwall 36. The top and bottom sections 26, 28 of the bottom portion 16 ofthe casing provide a cavity 38 therein. A plurality of verticallyextending bolts 40 and nuts 42 pass through aligned openings in andsecure together the top and bottom portion 14 and 16 and theintermediate plate 24 of the casing 12.

A fluid reservoir 44 is also secured, by the bolts and nuts 40, 42 withthe bottom of the bottom portion 16 of the casing 12. Gaskets may beprovided between the various portions, 14, 16 plate 24 and sections 26,28 of the casing 12 and reservoir 44 for providing a good sealtherebetween.

A vertical shaft 46 is rotatably secured along a central vertical axisof the motor means 10 for rotation about a fixed axis 48. The shaft 46is rotatably supported by being secured with the inner race of a thrustbearing 50 which has its outer race secured with and supported in arecess 52 provided in the upper surface 54 of the wall 36 in the bottomportion 16 of the casing 12. The shaft 46 is also rotatably supported atits upper end by being received through a bushing 56 provided in a topcover plate 58 secured by bolts 60 with the top wall 20 of the portion14 of the casing 12. The shaft 46 extends through the cavity 22 in thetop portion 14 of the casing 12, through an enlarged opening 62 in theplate 24 and through the cavity 38 within the bottom portion 16 of thecasing 12 by passing'through openings 64 and 66 in the top and bottomwalls 30 and 36. The top and bottom walls 30 and 36, thus, also providelike parts bearing surfaces for rotatably supporting the shaft 46 withinthe casing 12.

A cam wheel 68 which is secured, within the cavity 22 of the top portion14 of the casing 12, with the plate 24 by bolt means 70, provides acentral opening therethrough for rotatingly receiving and supporting theshaft 46. A rotor unit 72 is also received within the cavity 22 of thetop portion 14 of the casing 12 for rotation with the shaft 46. Rotorunit 72 has a central portion 74 positioned above the cam wheel 68providing a hub 76 which is secured by screw means 78 with the shaft 46.The central portion 74 extends radially outward from the shaft 46 to anend portion 80 which extend downwardly along and is radially outwardlydisplaced from the vertical surface 82 of the cam wheel 68.

The outer vertical peripheral surface 84 of the rotor unit 72 which iscircular in section moves proximate to the vertical inside surface 86 ofthe wall 18 of the top portion 14 of the casing 12, as can be seen inFIG. 2. The wall 86 provides an annular groove 87 having a bottomsurface 89 and side surfaces 91 which has a plurality of indentedregions 88 of arcuate form which vary in depth in the radial directionwith respect to the shaft 46. The indented regions 88 are enclosed bythe vertical peripheral surface 84 of the rotor unit 72 to form aplurality of compression chambers 90.

In the embodiment of the rotary motor means 10 illustrated, fourcompression chambers are provided, each extending angularly approximate60 about the shaft 46 and being equally and symetrically disposed aboutthe axis 48. The angular separation between adjacent chamber 90, centerto center, is 90, there being a separation of 30 between the beginningof one compression chamber and the end of the next adjacent compressionchamber measured about the axis 48. Of course, depending upon designcircumstances and requirements, the angular extent, separation and depthas well as number of compression chambers may be varied to obtainrequired results.

A plurality of blade elements 92 are supported for radial movement withrespect to the axis 48 by being received in respective openings 94 inthe rotor unit 72. The blade elements 92 for the embodiment of the motormeans 10 illustrated are three in number and are exceeded in number bythe four compression chambers 90 with which they coact. The bladeselement 92 are spaced equally and symetrically about the axis 48 at 120intervals. This is contrasted with the equal spacing of 90 for thecompression chambers about the axis. The effect of such differences inangular spacings be tween the chambers and the blade elements coactingtherewith for producing the sequential timed combustion cycles willbecome evident with the further description of the invention providedherebelow.

The first end 97 is enlarged and substantially rectangular in form andis movably received in an enlarged portion 96 of the opening 94 in theend portion 80 of the rotor unit 72, while its second stem end 98extends through a reduced section 100 of its opening 94 toward thesurface 82 of the cam wheel 68. The end 98 is provided with a roller 102for engaging and riding over the surface 82 of the cam wheel. A helicalspring 104 is also received within the reduced portion 100 of theopening 94 about the second stem end 98 of the blade 92 for urging andmaintaining the roller 102 in engagement with the surface 82 of the camwheel 68.

The first end 97 of each the blade elements 92 is provided with aplurality of grooves 93 each receiving therein a sealing strip which ispreferable made of a wear resistant metallic material. The strips 95which extend across the top and along the sides of the first end 94 ofthe blade elements 92, engage the bottom surface 89 and two sidesurfaces 91 of the groove 87 and seal the portion of the compressionchamber 90 in front of the blade element 92 from the portion of thechamber in back of the blade element 92. Four strips 99 may also bepositioned transversing the groove 87 in respective slots providedintermediate adjacent compression chambers 90 for reducing fluid leakagebetween chambers 90.

A pair of top and bottom sealing rings 99, 101 may also be secured incircular grooves provided in the inside surface of wall of the topsection 14 and the faces 142, 144 and is provided with a plurality ofindented regions 124. The regions 124 each have anarcuate surfacevarying in depth in the direction of the axis 48. The top surface 120 ofthe rotor unit 108 enupper surface of the plate 24. The sealing rings99, 101

are also movably received in complementary circular grooves in the topand bottom surfaces of the end portion 80 of the rotor unit 72. The ringstrips 99, 101, thus serve to seal the compression chambers 90 from thecavity 22 of the casing 12. Such sealing action maximizes pressure buildup in the compression chambers 90 and fluid delivery to the combustionchambers 126 during a compression cycle. The sealing of the compressionchambers also minimized oil seepage and collection in the chambersthereby conserving oil and preventing oil blockage and the damage whichmay result therefrom.

The cam wheel 68 is provided with a plurality of protruding portions106, which extend arcuately in the radial direction in correspondencewith a respective one of the compression chambers 90. Thus, as therollers 102 of the blade elements 92 move over the surface 82 of the camwheel 68 with the rotation of the rotor unit 72, the blade elements 92are respectively caused to move in the radial direction for sequentiallypositioning their first ends 97 within the compression chambers 90 inclose proximity to the arucate surfaces of the indented regions 88. Thuswith each rotation of the unit 72 each of the three blade elements 92 iscaused to move into each of the four compression chambers. The spring104 which urges its blade element 92 in the direction towards thesurface 82 of the cam wheel, also opposes the centrifugal forcegenerated by the rotation of the blade elements, thereby reducingexcessive wear and friction which would result from an increased inpressure exerted by the blade elements 92 in contact with the surface ofthe groove 87.

The cavity 38 within the bottom portion 16 of the casing 12 has withinit, a second rotor unit 108 secured with the shaft 46 for rotary motionabout the axis 48. The rotor unit 108 has a central portion 110including a hub 112 providing a opening receiving through it the shaft46. A plurality of screw elements 114 are threaded received in the hub112 and engage the shaft 46 for securing the rotor unit 108 therewith.The rotor 108 is provided with an enlarged outer portion 116 which isradially displaced from and symetrical about the shaft 46 and the axis48. The outer portion 116 of the rotor unit 108 is provided with aperipheral surface 118 which is positioned proximate to the verticalwalls 32, 34 of the bottom portion 16 of the casing 12, and an upperperipheral surface 120 which is proximate to the lower surface 121 ofthe wall 30 within the-cavity 38'of the lowerportion l6 of the casing12.

The lower'surface 121 of the horizontal wall 30 is provided with anannular groove 122 of rectangular cross section radially displaced fromand extending arcularly about the axis 48 as its center. The groove 122has a horizontal top surface 146 and vertical side surcloses the groove122 and the indented regions 124 providing a plurality of combustionchambers 126 bounded by the indented regions 124 and the surface of therotor unit 108.

The groove 122 with its combustion chambers 126 are sealed from thecavity 38 by sealing rings 128 and 130, which may be made of a metallicmaterial, and are of circular form for being received and secured withinannular grooves 132 and 134 extending cocentrically about the shaft 48and positioned on each side of the groove 122. The sealing rings 128,extend and are slidably received into aligned grooves 136, 138 in thetop surface 120 of the rotor unit 108. A strip 140 of sealing materialwhich may be of metallic composition is also secured within the groove122 transverse to the side walls 142, 144 for slidably engaging the topsurface 120 of the rotor element 108, thereby sealing the combustionchambers 126 from each other. The extending end of the strip 140 arepreferably tapered to allow minimum friction with the top surface 120when the rotor 180 rotates its designed direction, and for alsominimizing interference with the blade elements 148 in their passagealong the groove 122. The combustion chambers 126 are equal in number tothe compression chambers 90 and symetrically arranged at equal angularseparations about the axis 48. The combustion chambers 126, it is noteddiffer from the compression chambers 90, in that they have arcuatesurfaces which vary in depth in the axial direction, whereas the arcuatesurfaces defining the compression chambers 90 vary in depth in theradial direction.

The plurality of blade elements 148 are similar to the blade elements 92but are retained by the rotor unit 108 in an orientation which is 90displaced from the orientation of the blade elements 92. The topportions 150 of the blade elements 148 are each movably received withina respective slot 152 extending through the top surface 120 of the rotorunit 108 while the bottom stem portion 154 extends downwardly from thetop portion 150 through an opening 156 of reduced size and a roller 158at the bottom of the stem portion 154 extends beyond the bottom surface160 of the rotor unit 108.

The roller 158 rides on a cam surface 160 comprising an annular surfacewhich varies in height in the axial direction about the shaft 46 asclearly seen in FIGS. 1 and 5. The cam surface 160 is formed on thebottom inside surface of the bottom wall 36 of the lower section 28 ofthe casing 12. The cam surface 160 extends in the upward direction infour regions 162 corresponding to the four combustion chambers 126 andserves to move the blade elements 148 in the vertical direction torespectively position their top portions 150 within the combustionchamber 126 for maintaining its top surface proximate to the top surface146 of the groove 122. The helical spring 164 received about the lowerstem portion 154 of each of the blade elements 148 urges the bladeelements 148 in the downward direction for maintaining its wheel 158 incontact with the cam surface 160 to accurately positioning the bladeelement 148. (See FIG. 7)

With the rotation of the rotor unit 108, each blade element 148 slidablymoves along the groove 122 sequentially traversing each of the fourcombustion chambers 126. In order to maintain a seal between the topportion 152 of each of the blades 148 and the surfaces 142, 144 and 146of the groove122, the top portion 150 of each of the blade elements 148is provided with a plurality of grooves 165 extending thereabout forreceiving respectively the sealing strips 166 which may be made of ametallic resilient material and slidably engages the wall surfaces ofthe groove 122. Such means acts to seal the portion of the combustionchamber 126 on one side of the blade element 148 from the portion on theother side, when the blade element 146 is traversing a combustionchamber 126. Such sealing action is of importance for minimizing leakageduring a combustion cycle and maximizing the force exerted upon theblade elements 148 by the expanding gases behind the blade elements 148.The seals also limit oil collection in the combustion chambers, blockageof the chambers and contamination of the combustible mixture with theresulting exhaustion of the pollutants. The vertical extent of thecombustion chambers are also important in preventing oil collection inthe combustion chambers 126 and allowing gravity drainage of excessivelubricants therefrom.

It is noted that in the embodiment of the rotary motor meansillustrated, the four compression chambers shown are angularly displacedon centers of 90 from each other, with each chamber having an arcuateextension about the axis 48 of 60, leaving between the beginning and endof adjacent combustion chambers. The number of combustion chambers 126,thus, equals the number of compression chambers 90. As in the case ofthe blade elements 92, three elements 148 are utilized in associationwith the compression chambers 126, the number of blade elements beingexceeded by the number of chambers with which they are associated. Thesignificance of this relationship will be described in detailed below inconnection with the operation of the rotary motor means 10.

Referring to FIG. 2, and noting that the rotor unit 72 rotates in theclockwise direction as illustrated by the arrow 168, each of thecompression chambers 90 is provided with a fluid inlet port 170 fordelivering fluid to the end of the compression chamber 90 firsttransversed by a blade unit 92 as it enters the chamber 90. The otherend of each of the chambers 90 is provided with an outlet port 172. Theoutlet port 172 connects with an inlet port 174 of a correspondingcombustion chamber 126 by a connecting passage way 176. The passage way176 extends through the upper portion 14 of the casing, the bottom plate24 and the top wall 30 of the lower portion 16 of the casing 12. Thepassage vided with an arm which extends radially inwardly towards theshaft 46. The shaft 46 within the opening 62 of the plate 24 is providedwith a cam wheel 180 having a surface varying in its radial displacementfrom the axis 48 for controlling the action of the valve 178. The valve17 8 is provided with a rod 181 having a roller 182 at its end forcontacting and riding upon the cam surface 183, and is urged intocontact with said surface by a helical spring 184. By this means fluidflow through the passage way 176 between the compression chamber and arespective combustion chamber is controlled as a function of the angularposition of the shaft 46. A passage way 176 and valve means 178 areprovided for each of the compression chambers for providing andconditionally controlling the connection between it and a respectivecombustion chamber, thus requiring four such passage ways and valvemeans.

Considering that the rotor unit 108 rotates in the same clockwisedirection as the rotor unit 72, the inlet port 174 to each of thecombustion chambers 126 is positioned at the end of each chamber 126where the blade elements 148 first enter such chambers. Thus, soon'afterone of the blade elements 148 enters a compression chamber 126, the port174 is positioned behind the blade element. Soon after traversing theinlet port 174, a blade element 146 passes another opening 184 housing aspark plug 186 with its electrodes exposed to the fluid within thecompustion chamber. At the other end of each combustion chamber 126, anexhaust port 188 is located which is vented externally of the casing 12by an opening 190. The opening 190 may be connected to further meanssuch as exhaust manifolds for removing combustion products as well knownin the art but not shown.

A fluid inlet 192 to each of the combustion chambers 126 is alsoprovided between the spark plug opening 184 and the exhaust port 188.The inlet 192 is connected by a passageway 194 which may extend throughthe casing 12 as illustrated through a valve means 198 similar to thevalve means 178 for conditionally opening the passageway to another end196. The end 196 of the passageway 194 is connected with the chamber ofthe pump cylinder 198 of the water pumping means 200. The water pumpingmeans includes a cam wheel 202 secured by screw fastening means 204 withthe shaft 46 beneath the cover plate 58 and within the cavity 22 of theupper portion 14 of the casing 12. The cam wheel 202 which also rotateswith the shaft 46, in the clockwise direction as shown by the arrow 206,is provided with three projecting regions 208 providing a cam surface210 with varying in the radial direction with respect to the shaft 46.Four cylinders 198 each associated with one of the combustion chambers126 are positioned at intervals about the shaft 46 and secured with thetop wall 20 within the opening 218. The cylinders 198 are each providedwith a piston which is slidably received therein and connected with apiston rod 220 extending toward the shaft 46 and having a roller 222 atits end for contacting and rolling along the cam surface 210 of thewheel 202. The cylinders 198 are each provided with spring means urgingits rod 220 in the direction towards the cam wheel 202. Each one of thecylinders 198 is also provided with a directional inlet valve 224 whichis connected by tubing 226 to a water reservoir (not shown). When thepiston rods 220 of the pumping means 200 is extended out of its cylinder198, the cylinder is filled with water. When the piston rod 220 is urgedinto the cylinder 198 by the cam wheel 202, the water therein ispressurized and upon the opening of the valve 194 in the bottom plate24, a measured quantity of water is injected into its associatedcombustion chamber 126. The cam wheel 180 has a configuration similar tothe cam wheel 202 and acts to open the passage way 194 for the injectionof water after a blade element 148 has passed the spark plug within itsassociated combustion chamber 126 and the combustible fluid behind theblade element 148 has been ignited by the spark plug 186 but before itis removed through port 188.

The inlet ports to the compression chambers 90 are each connectedexternally by a passage way 171 terminating at an opening 173 on theupper surface of the top wall of the casing 12. Each of the openings 173may be connected by manifold means (not shown) to a carburetor forproviding a combustible mixture of air and fuel. Where fuel injection isto be utilized the openings 173 need not be connected with a carburetorbut provided for delivery thereto of a supply of air for the compressionchambers 90, the fuel being directly injected into the combustionchambers 126 to provide the combustible mixture.

To provide lubrication for the rotary motor means 10, a pump 228 issecured with the bottom of the reservoir 44 within the lubricant 230which can comprise the conventional motor oil. The pump 228 is driven bya gear wheel 232 which engages a drive gear wheel 234. The wheel 234 ispositioned about for rotation with the shaft 46. The pump 228 has aninlet receiving lubricant 230 within reservoir 44 from which it ispumped under pressure through a tube 236 to an oil distributor ring 238which is positioned about the bottom of the shaft 46 and'provides an oilreservoir for passing oil under pressure through the plurality ofopenings 240 about the periphery of the shaft 46 into a central upwardlyextending passage way 242 of the shaft 46. Along the passage way 242,the shaft 46 is provided with a plurality of openings 244 through whichlubricant .under pressure is dispensed to the various bearings andmoving parts of the rotary motor means 10. The various internalcomponents within the casing 12 as well as the wall sections of thecasing 12 are provided with'openings for permitting the oil thusdistributed to flow downwardly by gravitational-force where it isultimately received by the reservoir 44 for being again distributed andcirculated as just described.

In addition to the cooling effect provided by the circulation of thelubricant 230, the casing 12 may be provided with means foradditionalcooling. Such means include a plurality of passage ways 246 in thevarious portions and sections of the casing which may be joined byinterconnecting passage ways 248. Coolants may be pumped through thepassage ways 246, 248 by pumping means (not shown) connected'between theinlet and outlet tubes 250,'252. The coolant removed from the rotarymotor means 10 may be passed through a radiator (not shown) as isconventional for maintaining the desired temperature for the motor means10.

As already noted, the blade element 92 traversing the compressionchambers 90 comprise three in number in the embodiment illustrated, andare equal in number to the number of bladeelements 148. With the bladeelement 92 equally disposed about the shaft 46, one blade element 92 isdisplaced l20 from its adjacent blade elements 92. The blade elements148 which are also equally spacedabout the shaft 46 have an angulardisplacement of 120 between adjacent blade elements 148. Since the bladeelements 92 are supported by the rotor unit 72, while blade elements 148are supported by the rotor unit 108, the angular relationship betweenthe blade elements 92 and blade elements 148 may be adjusted byloosening one or the other or both of the rotor units 72, 108 with theshaft means 46, rotating same to desired relative position for therespective blades and resecuring .the rotor units with the shaft meansby tightening the respective securing means 78, 114. Thus, the bladeelements 72 may be arranged directly above a corresponding blade element146 to provide a zero angular dispositionbetweenthem about the axis 48,or the angulardisplacement may be adjusted to any desired value. Thesignificance of such an adjustment-for determining the compression ratioof the rotary motor means 10 will be described in detail in connectionwith FIGS. 8a through Be.

An adjustment between the relative angular displacement between thecompression chambers and the combustion chambers 126 may also beeffected by loosening the securing holds and nuts 40, 42 and rotatingthe top portion 14 of the casing 12 (containing the compression chamber90) with respect to the bottom portion 16 (containing the combustionchambers 126). To permit such relative rotation, the casing 12 maybeprovided with elongated slots 254 in the upper portion 14 of the casing12. Where the upper portion of the casing 16, the bottom plate 24 andthe lower portion of the casing 16 are provided with passage ways, suchas passage ways 176, 194 and 248 therebetween, horizontal connectingpassage ways may be provided between such boundary surfaces for allowingthe relative rotation of the casing portions without restriction. Suchpassage ways 256 and 258 are shown in FIG. 2 in connection with thepassage ways 156 and 194. The effect of the relative positions of thecompression chambers and combustion chambers in their angularrelationship about the shaft 46 will also be described in connectionwith the FIGS. 8a 8d.

In operation with the shaft 46 rotating in the clockwise direction, therotor units 72 and 108 also rotate in unison in the clockwise directioncompleting one 360 revolution for each complete revolution of the shaft46. With each complete revolution of the rotor unit 72, each of itsblade elements 92 completes a revolution about the groove 87, each bladeelement 92 passing through the four compression chambers 90. Thus eachcompression chamber 90 receives three blade elements through it for eachrevolution of the shaft 46, and a total of 12 passes are made by thethree blade elements 92 through the four compression chambers 90.

As a blade element 92 reaches a compression chamber 90, it is projectedby the surface 82 of the cam wheel 106 to extend into the chamber tofollow the arcuate surface of indentation, being withdrawn gradually asit passes the deepest portion of the chamber until it is removed fromthe chamber and moves along the groove 87 in the region betweenchambers.

As the blade element 92 passes the inlet opening 170, a mixture ofcombustible fluid is drawn into the chamber 90 through the inlet portbehind the blade element 92. At the same time, the combustible fluid infront of the blade element 92 which was drawn in behind the preceedingblade element 92 is compressed. During the compression of the fluidwhich results from the decreasing volume of the compression chamber 90remaining in front of the blade element 92 as it rotates in theclockwise direction, an angular disposition of the shaft 46 is reachedwhich results in the opening of the passage way 176 by the valve means178. This results in the compressed fluid being expelled by thecontinued movement of the rotor 72 from the compression chamber throughthe passage way 176 to its respective combustion chamber 126. As theblade element 92 passes over the outlet opening 172 in the compressionchamber 90, the valve means 178 closes the passage way 176 preventingthe reverse flow of combustible The rotor unit 72 and its associatedreciprocating blade elements 92, thus act, to provide twelve compressedcharges of combustible fluid, in timed sequence, with the rotation ofthe shaft 46, to respective combustion chambers 126. Since none of thethree blade elements 92 have the same angular relationship at the sametime with a compression chamber 90, compressed fluid charges aredelivered in sequence at different times and at equally spaced intervalsduring the rotation of the shaft 46. As it will be seen this contributesto the eveness and smoothness of the power generated and delivered bythe rotary means 10.

Because of the similar arrangement, each of the blade elements 148passes through each of the four combustion chambers with each revolutionof the shaft 46. The three blade elements 148, thus, make a total of 12passes through the combustion chambers with each of the combustionchambers receiving in sequence the three blade elements 148. The bladeelements 148 are also raised by the action of the cam surface 160 intothe combustion chambers to slide along the arcuate surface 124 and aregradually lowered for engaging the groove 122 intermediate thecombustion chambers.

After a blade element 148 is received into a combustion chamber 126 andpasses the inlet port 174, a charge of compressed combustible mixture isreceived from its corresponding compression chamber 90 into the portionof the combustion chamber 126 behind the blade element 148. As the bladeelement 148 passes the opening 184, the combustible mixture is exposedto the electrodes of the spark plug 186. The mixture is ignited by theenergization of spark plug 186 by timing means (not shown) which may becontrolled by the rotation of the shaft 46 in a well known conventionalmanner.

With the resulting combustion of the mixture and temperature rise,expansion of the mixture propels the blade element 148 along thecombustion chamber in the clockwise direction, driving the shaft 46through the intermediate rotor unit 108. An assist to the generatedenergy may be achieved by adding a fluid such as water, after thecombustion of the fuel mixture and during the time that the bladeelement 148 is being driven by the expanding gaseous mixture. The use ofsuch vaporizable fluid, serves to increase efficiency of the rotarymotor means 100 by obtaining a greater utilization of the heat generatedby the combustion of the fuel mixture. The structure and mode ofoperation of the motor means allows generation, delivery, and handlingof such increased power without damage to the motor means 10.

As the blade element 148 completes its travel along the combustionchamber 126, it uncovers the exhaust opening 188 which relieves thepressure within the chamber 126 and removes combustion products and heatgenerated during combustion by their expulsion under the force of thegenerated pressure. The extending length of the combustion chamber whichdetermined the displacement during which energy is delivered to theblade element 146, also allows more complete combustion of the fuelmixture providing greater efficiency as well as reduced contaminationand pollution by the exhausted fumes. The addition of the power assistby water injection, also serves to increase efficiency and reducepollutants. Any remaining combustion products, water and water vapor inthe combustion chamber 126 are completely removed from the combustionchamber ahead of the next blade element 148 which passes into thecombustion chamber and receives behind it, the compressed fluid mixturefor the succeeding power cycle of the combustion chamber 126.

From the above description, it is noted that power is delivered to eachblade element 148 during each passage through a combustion chamber 126.Thus, with twelve passages of a blade element 148 through the combustionchambers 126 during a single revolution of the shaft 46, twelve powercycles are achieved for each such shaft revolution. As a result, acombustion cycle occurs for each 30 of revolution of the shaft 46, andsince power may be delivered for each of such power cycles over anangular rotation of greater than 30, the power cycles overlap andprovide a highly uniform and smooth delivery of power to the shaft 46.The rotation of the shaft 46 is further smoothed by the rotating massprovided by the shaft 46, the rotor units 72 and 108 and the bladeelement 92 and 148, as well as those other bodies rotating therewithproviding a built-in flywheel effect.

Reference is now made to the FIGS. 8a through 8d for a description ingreater detail of the compression and combustion cycles of the rotarymotor means 10, taking into account various selected relationshipsbetween the compression, and combustion chambers with the respectiveblade elements 92 and 148 respectively coacting therewith.

Considering first FIG. 8a, a combustion chamber 126 is schematicallyillustrated by the solid arcuate line 300 while its associatedcompression chamber 90 is illustrated by the dashed arcuate line 302.The representation illustrates the angular relationship between acombustion chamber 126 with a compression chamber 90 over a span of 120equal to the displacement between the blade elements 148 coacting withthe combustion chambers 126. The angular designations in the H08. 8athrough 8e, refer only to the position of such a blade element 148 andnot that of a blade elements 92. In considering the curves 302 and 300,it is noted that for the particular configuration of the rotary motormeans 10 illustrated in FIG. 8a, the compression chamber begins at 10and ends at on the angular scale provided by the figure, while itsassociatedcombustion chamber 126 begins at 60 and terminates at 120.Thus, each of the chambers has a span of 60 and the end of thecompression chamber overlaps the beginning of the combustion chamber by10. When a blade element 148 illustrated by the solid line 304 is at 40of the scale, a blade element 92 illustrated by the dashed line 306 isat 30 showing a lag or displacement of 10 between such elements.

With this the angular relationship of the chambers and blade elements,it is noted that compression of fluid in the compression chamber 90commences when the blade element 148 is at 20 and the compression bladeelement 92 enters the compression chamber at 10. Compression continuesand is terminated at 80, while the intake of compressed fluid by thecombustion chamber is initiated when the blade element 148 is at 60 andterminates when the blade element reaches the 80 position. Thereafterfrom 80 to the remaining extent of the combustion chamber 126, power isdelivered to the blade element 148. After the delivery of compressedfluid from the compression chamber to the combustion chamber, thecompression chamber receives intake fluid from the 80 position until thenext compression cycle is commenced by the following blade element 92.After the completion of the power cycle, the exhaust port 188 is openedand thereafter until the next intake begins at 60, the following bladeelement 148 exhausts the remaining combustion products in front of itduring the intake and combustion of fluid behind it.

With the above operation of the rotary motor means 10, it is noted thatintake of combustible fluids extends over a 20 displacement at theconclusion of which all of the fluid constituting the total volume ofthe compression chamber is confined therein. Since volume is not alinear function of angular displacement because of the arcuateconfiguration of the compression and combustion chambers, thecompression ratio can not be calculated by the ratio of the angulardisplacement for sweeping through the compression chamber to the angulardisplacement during intake to the combustion chamber.

It is evident, however, that the compression ratio of the motor means10, can be varied from that illustrated in FIG. '80 by varying theangilar'relationship between the blade elements 92 and 148. This is'seenin FIG. 8b, where the solid .line 308 and dashed line 310 illustratethat the blade elements 92 have been aligned with the blade elements148, while the combustion chamber and compression chamber illustrated bythe solid and dashed lines 300 and 302 maintain the same relationshipprovided in FIG. 8a.

Under these circumstances, the compression cycle extends for 60 from 10to 70 while the intake has been reduced to half, extending over 10 ofdisplacement from 60 to 70. The power cycle takes place during theremaining 50 of displacement from 70 to 120, for the blade element 148.Thus, the compression ratio is increased since the same quantity offluid is forced into a smaller volume in the combustion chamber 126before ignition.

The same increase in the compression ratio as illustrated in FIG. 8b maybe achieved by changing the angular relation between the combustion andcompres sion chambers as illustrated in FIG. 8c. The solid line 310shown in FIG. 80 represents the combustion chamber which extends for 60displacement from 60 to 120, while the dashed line 312 represents thecompression chamber which extends for 60 displacement from 0 to 60 sothat there is no overlapping relationship between the chambers. It isnow noted that the compression cycle, intake and power cycles areidentical to those shown for the conditions illustrated in FIG. 8b.

FIG. 8d illustrates that the effect of a variation of the angularrelationship between the blade elements 92, 148 may be compensated foror nullified by a variation of the angular relationship between thecompression and combustion chambers 90, 126(Thus, if the blade elements92, and 48 are aligned as illustrated by the solid line 308' and thedashed line 310, and the combustion chamber 126 illustrated by the solidline 314 and the compression chamber 90 illustrated. by the dashed line316 has arr-overlapping relationship increased to the compression,intake, power and exhaust cycles remain unchanged from that shown forthe conditions illustrated in FIG. 8a.

aligned to extend over the same angular disposition as the compressionchamber illustrated by the dashed line 320. The solid line 322 signifiesthat when the blade element 148 is at 10 in the angular scale, the bladeelement 92 illustrated by the dashed line 324 is at 60, so that theangular relationship between the respective blades is one in which thecompression blade elements lead the combustion blade elements by 50. Theresulting compression, intake, power and exhaust cycles illustrated inFIG. 8e are identical to those illustrated in FIG. 8b and FIG. 80.

The FIGS. 8a through 8e, are illustrative of the operating conditionsproduced by the particular adjusted relationships between the bladeelement 92 and 148 and the compression and combustion chambers 90, 126.From the above it will be obvious that many other conditions may beachieved by adjusting the angular relationships between the bladeelements and combustion and compression chambers, to meet various designrequirements.

While this invention has been described and illustrated with referenceto a specific embodiment, it will be understood that the invention iscapable of various modifications and application, not departingessentially from the spirit thereof, which will become apparent to thoseskilled in the art.

What is claimed is:

' 1. A rotary motor means comprising a casing having a first portionproviding a first cavity therein with a plu rality of first indentedregions and a second portion providing a second cavity therein with asecond plurality of indented regions, a rotatable shaft, a first rotorunit connected to said rotatable shaft and supported for rotary movementwithin said first cavity proximate to said first indented regions forproviding a respectivee plurality of compression chambers, a seconddiscrete rotor unit connected to said shaft and supported for rotarymovement within said second cavity proximate to said second indentedregions for providing a plurality of combustion chambers, a plurality offirst blade elements movably supported by said first rotor unit formovement in a radial direction with respect thereto and beingsequentially received in said compression chambers with rotation of saidfirst rotor unit, a plurality of second blade elements movably supportedby said second rotor unit for movement in an axial direction withrespect thereto and being sequentially received in said combustionchambers with rotation of said second rotor unit, an annular cam meanssupported by said casing for moving said second blade elements in saidaxial direction as said second rotor unit rotates, means for deliveringcompressed fluid from each of said compression chambers in predeterminedtime sequence to respective combustion chambers for providing acombustible mixture to said combustion chambers and for propelling saidsecond blade element during combustion and expansion of said mixture,and means for removing combustion products from said combustionchambers.

2. A rotary motor means in accordance with claim 1 wherein the secondportion of said casing includes a cylindrical side wall and first andsecond end walls enclosing said second cavity, said side wall beingradially displaced from and extending in the direction of the axis ofsaid second rotor unit while said end walls extend transversely to saidaxis, said first end wall having an annular groove which varies in depthin the direction .second plurality of indented regions, said groovehaving a fixed radial displacement from the axis of rotation of saidsecond rotor unit, and said second blade elements each being radiallydisplaced from said axis and slidably received in said groove.

3. A rotary motor means in accordance with claim 2 wherein said secondrotor unit has a side face proximate to said first end wall of saidcasing, and seal means secured for sealing engagement between said firstend wall and said side face of said second rotor unit radially inwardlyand outwardly of said groove.

4. A rotary motor means in accordance with claim 2 wherein said cammeans is provided by a annular inner surface on the second end wall ofsaid casing and undulates in a direction parallel to the axis ofrotation of said second rotor unit, said second blade elements eachhaving a first end portion received in the groove and a second endportion movably engaging said annular inner surface, and means urgingeach second end portion towards said surface.

S. A rotary motor means in accordancewith claim 2 including meanssecured within said groove in sliding engagement with said second rotorunit for sealing each of said combustion chambers from one another.

6. A rotary motor means in accordance with claim 1 including a fluidreservoir disposed within said casing below the second end wall, andmeans for eelivering lubricant from said reservoir to said second cavityand returning the same to said reservoir.

7. A rotary motor means in accordance with claim 6 wherein saidlubricant delivering means includes pumping means and a passagewayextending through said shaft, and means for enabling lubricant to returnfrom said second cavity to said reservoir by gravity.

8. A rotary motor means in accordance with claim 1 including means forperiodically delivering to the combustion chambers in timed sequenceafter the firing of the combustible mixture and before the removal ofsaid combustion products a predetermined volume of water forvaporization to steam, said water and water vapor being removed fromsaid combustion chambers with the removal of combustion products aftercombustion.

9. A rotary motor means in accordance with claim 1 wherein the number ofcombustion chambers in said second portion of said casing exceeds thenumber of said second blade elements.

10. A rotary motor means in accordance with claim 9 wherein the numberof compression chambers equals the number of combustion chambers, andthe number of said first blade elements equals the number of said secondblade elements.

11. A rotary motor means in accordance with claim 1 wherein said firstand second portions of said casings are secured with each other forangular adjustment about the axis of said shaft for providing apredetermined angular relationship between the compression chambers andcombustion chambers.

12. A rotary motor means in accordance with claim 1 wherein said meansfor delivering compressed fluid to respective combustion chambersincludes a valve means controlled by rotation of said shaft forconnecting in timed sequence respective outlet and inlet ports of saidcompression and combustion chambers for the delivery of compressed fluidto said combustion chambers.

13. A rotary motor means'comprising a rotatable shaft, a casing having aplurality of compression chambers in a first portion thereof and aplurality of combustion chambers in a second portion thereof but axiallydisposed along the longitudinal axis of a said rotatable shaft, a firstrotor unit connected to said shaft and rotatable in said compressionchambers for compressing fluids therein, a second rotor unit connectedto said shaft and rotatable in said combustion chambers, conduit meansfor delivering compressed fluid from each of said compression chambersin predetermined timed sequence to respective combustion chambers forproviding a combustible mixture to said combustion chambers a cam onsaid shaft, valve means associated with said conudit means andresponsive to rotation of said cam for controlling flow from thecompression chambers to the combustion chambers, a plurality of bladeelements movably supported by said second rotor unit for movement in anaxial direction thereof and being sequentially received in saidcombustion chambers with rotation of said second rotor unit, and cammeans on said casing for moving said blade elements in said axialdirection as said second rotor unit rotates.

14. A rotary motor means in accordance with claim 13 including springmeans associated with each blade element and biasing each blade elementin a direction away from said casing first portion toward said cammeans.

15. A rotary motor means in accordance with claim 14 wherein saidcombustion chambers lie in a plane disposed between said first andsecond rotor units, and said second rotor unit being between said planeand the said cam means.

1. A rotary motor means comprising a casing having a first portionproviding a first cavity therein with a plurality of first indentedregions and a second portion providing a second cavity therein with asecond plurality of indented regions, a rotatable shaft, a first rotorunit connected to said rotatable shaft and supported for rotary movementwithin said first cavity proximate to said first indented regions forproviding a respectivee plurality of compression chambers, a seconddiscrete rotor unit connected to said shaft and supported for rotarymovement within said second cavity proximate to said second indentedregions for providing a plurality of combustion chambers, a plurality offirst blade elements movably supported by said first rotor unit formovement in a radial direction with respect thereto and beingsequentially received in said compression chambers with rotation of saidfirst rotor unit, a plurality of second blade elements movably supportedby said second rotor unit for movement in an axial direction withrespect thereto and being sequentially received in said combustionchambers with rotation of said second rotor unit, an annular cam meanssupported by said casing for moving said second blade elements in saidaxial direction as said second rotor unit rotates, means for deliveringcompressed fluid from each of said compression chambers in predeterminedtime sequence to respective combustion chambers for providing acombustible mixture to said combustion chambers and for propelling saidsecond blade element during combustion and expansion of said mixture,and means for removing combustion products from said combustionchambers.
 2. A rotary motor means in accordance with claim 1 wherein thesecond portion of said casing includes a cylindrical side wall and firstand second end walls enclosing said second cavity, said side wall beingradially displaced from and extending in the direction of the axis ofsaid second rotor unit while said end walls extend transversely to saidaxis, said first end wall having an annular groove which varies in depthin the direction of the axis of said second rotor unit for providingsaid second plurality of indented regions, said groove having a fixedradial displacement from the axis of rotation of said second rotor unit,and said second blade elements each being radially displaced from saidaxis and slidably received in said groove.
 3. A rotary motor means inaccordance with claim 2 wherein said second rotor unit has a side faceproximate to said first end wall of said casing, and seal means securedfor sealing engagement between said first end wall and said side face ofsaid second rotor unit radially inwardly and outwardly of said groove.4. A rotary motor means in accordance with claim 2 wherein said cammeans is provided by a annular inner surface on the second end wall ofsaid casing and undUlates in a direction parallel to the axis ofrotation of said second rotor unit, said second blade elements eachhaving a first end portion received in the groove and a second endportion movably engaging said annular inner surface, and means urgingeach second end portion towards said surface.
 5. A rotary motor means inaccordance with claim 2 including means secured within said groove insliding engagement with said second rotor unit for sealing each of saidcombustion chambers from one another.
 6. A rotary motor means inaccordance with claim 1 including a fluid reservoir disposed within saidcasing below the second end wall, and means for eelivering lubricantfrom said reservoir to said second cavity and returning the same to saidreservoir.
 7. A rotary motor means in accordance with claim 6 whereinsaid lubricant delivering means includes pumping means and a passagewayextending through said shaft, and means for enabling lubricant to returnfrom said second cavity to said reservoir by gravity.
 8. A rotary motormeans in accordance with claim 1 including means for periodicallydelivering to the combustion chambers in timed sequence after the firingof the combustible mixture and before the removal of said combustionproducts a predetermined volume of water for vaporization to steam, saidwater and water vapor being removed from said combustion chambers withthe removal of combustion products after combustion.
 9. A rotary motormeans in accordance with claim 1 wherein the number of combustionchambers in said second portion of said casing exceeds the number ofsaid second blade elements.
 10. A rotary motor means in accordance withclaim 9 wherein the number of compression chambers equals the number ofcombustion chambers, and the number of said first blade elements equalsthe number of said second blade elements.
 11. A rotary motor means inaccordance with claim 1 wherein said first and second portions of saidcasings are secured with each other for angular adjustment about theaxis of said shaft for providing a predetermined angular relationshipbetween the compression chambers and combustion chambers.
 12. A rotarymotor means in accordance with claim 1 wherein said means for deliveringcompressed fluid to respective combustion chambers includes a valvemeans controlled by rotation of said shaft for connecting in timedsequence respective outlet and inlet ports of said compression andcombustion chambers for the delivery of compressed fluid to saidcombustion chambers.
 13. A rotary motor means comprising a rotatableshaft, a casing having a plurality of compression chambers in a firstportion thereof and a plurality of combustion chambers in a secondportion thereof but axially disposed along the longitudinal axis of asaid rotatable shaft, a first rotor unit connected to said shaft androtatable in said compression chambers for compressing fluids therein, asecond rotor unit connected to said shaft and rotatable in saidcombustion chambers, conduit means for delivering compressed fluid fromeach of said compression chambers in predetermined timed sequence torespective combustion chambers for providing a combustible mixture tosaid combustion chambers a cam on said shaft, valve means associatedwith said conudit means and responsive to rotation of said cam forcontrolling flow from the compression chambers to the combustionchambers, a plurality of blade elements movably supported by said secondrotor unit for movement in an axial direction thereof and beingsequentially received in said combustion chambers with rotation of saidsecond rotor unit, and cam means on said casing for moving said bladeelements in said axial direction as said second rotor unit rotates. 14.A rotary motor means in accordance with claim 13 including spring meansassociated with each blade element and biasing each blade element in adirection away from said casing first portion toward said cam means. 15.A rotary motor means in accordance with claim 14 wherein Said combustionchambers lie in a plane disposed between said first and second rotorunits, and said second rotor unit being between said plane and the saidcam means.